Describe the problem

PhpWord/Style/Font.php

RTF (and I assume other formats) has the ability to inherited ParagraphStyle formatting from a parent ParagraphStyle. However, because IndentationStyle currently have default values, there's no way to tell if the values have been intentionally set or are simply the defaults. Null default is needed to determine whether the value is intentional or not.

Imaging this scenario: A parent ParagraphStyle sets indentLeft to -500, and the child ParagraphStyle wants indentLeft to be 0. How would ParagraphStyle know that the 0 value is an intentional choice or simply the default value. If it's the default, then the user did not intend for indentLeft to change from the parent, but if intentional, then they did.

I can implement if there is agreement. But because I currently don't know how the other formats work and am only beginning to understand RTF, I want to verify this change makes sense and would not break the other writers.

Describe the expected behavior

When indentation variables are not set, nothing happens. When they are set, the values are provided.

Priority

• I want to crowdfund the feature (with @algora-io) and fund a community developer.
• I want to pay the feature and fund a maintainer for that. (Contact @Progi1984)